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Gastar hits trouble in Bossier bore

US independent Gastar Exploration hit problems drilling the lower section of it Donelson-4 well targeting the Lower Bossier zone in East Texas.

Bossier drilling: Gastar says gas kick forces sidetrack.
Bossier drilling: Gastar says gas kick forces sidetrack.
Published 3 March 2010, 21:42Updated 10 October 2016, 15:35
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